124505939 has 4 divisors (see below), whose sum is σ = 124531440. Its totient is φ = 124480440.

The previous prime is 124505929. The next prime is 124506007. The reversal of 124505939 is 939505421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 124505939 - 2²⁴ = 107728723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124505929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2879 + ... + 16040.

It is an arithmetic number, because the mean of its divisors is an integer number (31132860).

Almost surely, 2^124505939 is an apocalyptic number.

124505939 is a deficient number, since it is larger than the sum of its proper divisors (25501).

124505939 is an equidigital number, since it uses as much as digits as its factorization.

124505939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25500.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 124505939 is about 11158.2229319906. Note that the first 3 decimals coincide. The cubic root of 124505939 is about 499.3403821914.

The spelling of 124505939 in words is "one hundred twenty-four million, five hundred five thousand, nine hundred thirty-nine".